A ball moving with velocity of 
collides with another similar stationary ball. After the collision both the balls move in directions making an angle of 
with the initial direction. After the collision their speed will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Initial horizontal momentum of the system = m × × 9
Final horizontal momentum of the system = 2mv cos 30 0
According to law of conservation of momentum, m × × 9 = 2mv cos 30 0
⇒ ⇒ v = 5.2 m/s
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Two bodies of masses and have equal kinetic energies. If and are their respective momentum, the…
Work done in raising a box depends on
A light and a heavy body have equal momenta. Which one has greater K.E
A body at rest may have
The kinetic energy possessed by a body of mass m moving with a velocity v is equal to , provided
If the momentum of a body is increased n times, its kinetic energy increases